Shure specifications 515SBGX 515SBG-18X, Features, Specifications, Type, Frequency Response

Model 515SBGX, 515SBG-18X and 515SBG-18XF User Guide

515SBGX

515SBG-18X

GENERAL

The Shure Models 515SBGX, 515SBG-18X, and 515SBG-18XF microphones are low-impedance dynamic microphones designed to be mounted on flexible goosenecks or fixed pips. Optimized fre- quency response and a unidirectional (cardioid) pickup pattern makes them ideal for language labs, paging applications, and base station communications. They are also recommended for use as talkback or cuing microphones in TV, film, and recording studios. Because of their low impedance, these microphones retain their level and response characteristics even when long lengths of cable are used.

All three models are supplied with a push-to-talk button and a four-conductor cable (two conductors shielded).

Features

•Frequency response optimized for announcing, narration, and paging applications

•Cardioid pickup pattern symmetrical about axis

•Neodymium magnet for high signal-to-noise ratio

•Shock-mounted cartridge for quiet operation and low stand/han- dling noise

•Tough diecast locking grille and handle

•Built-in push-to-talk button controls microphone circuit and relay or control circuit

•45.7 cm (18 in.) gooseneck and mounting flange supplied (515SBG-18X and 515SBG-18XF only)

VARIATIONS

MODEL 515SBGX: Does not include gooseneck or mounting flange

MODEL 515SBG-18X:Includes gooseneck and 76.2 mm (3 in.) diameter mounting flange

MODEL 515SBG-18XF: Includes gooseneck and 44.4 mm (1-3/4 in.) diameter mounting flange

SPECIFICATIONS

Type

Dynamic (moving coil)

Frequency Response

80 to 15,000 Hz (see Figure 1)

	+20
	+10
		1 cm
		(3/8 in.)
dB	0
	–10	.06 cm
		(2 ft.)
	-20
			2	3	4 5 6 789	2	3	4 5 6 789
	20	50							20000
			100		1000			10000

Hz

TYPICAL FREQUENCY RESPONSE

FIGURE 1

Polar Pattern

Cardioid (unidirectional). Effective rejection of sound at rear of mi- crophone is uniform at all frequencies, while front pickup charac- teristics are uniform about axis (see Figure 2).

	180o			180o
150o	150o			150o	150o
120o		120o	120o		120o
90o		90o 90o			90o
	–20 dB			–20 dB
	–15 dB			–15 dB
60o	–10 dB	60o	60o	–10 dB	60o
	–5 dB			–5 dB
30o	30o			30o	30o
	0			0
	250 Hz			2500 Hz
	500 Hz			6400 Hz
	1000 Hz			10000 Hz

TYPICAL POLAR PATTERN

FIGURE 2

Impedance

150 Ω rated (180 Ω actual)

Output Level (at 1,000 Hz)

Open Circuit Voltage: -57 dBV/Pa* (1.4 mV) *1 PA = 94 DB SPL

Phasing

Positive pressure on diaphragm produces positive voltage on RED cable relative to BLACK cable lead

©2009 Shure Incorporated	Printed in U.S.A.
27E2974 (Rev. 9)